jsancio commented on code in PR #21122:
URL: https://github.com/apache/kafka/pull/21122#discussion_r2920400212
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server-common/src/main/java/org/apache/kafka/server/common/FinalizedFeatures.java:
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@@ -20,27 +20,125 @@
import java.util.Map;
import java.util.Objects;
-public record FinalizedFeatures(
- MetadataVersion metadataVersion,
- Map<String, Short> finalizedFeatures,
- long finalizedFeaturesEpoch
-) {
- public static FinalizedFeatures fromKRaftVersion(MetadataVersion version) {
- return new FinalizedFeatures(version, Map.of(), -1);
- }
+/**
+ * Represents the finalized feature levels for a Kafka cluster.
+ * <p>
+ * This class can be in one of three states:
+ * <ul>
+ * <li>Unknown - metadata version is not yet known (use {@link
#unknown()})</li>
+ * <li>KRaft version only - only metadata version is known (use {@link
#fromKRaftVersion(MetadataVersion)})</li>
Review Comment:
KRaft version only? Do you mean metadata version only?
I would suggest adding context for when is unknown used vs metadata only
used vs "full features" is used.
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